why Surya wood fire water heater withstand pressure pump? Surya wood fire water heaters are designed to withstand pressure pumps primarily due to their robust construction and materials. Here are a few reasons why they can handle pressure pumps effectively: Strong Construction Pressure Ratings Sealing and Welding Compliance with Standards Customer Assurance Manufacturers like Surya prioritize customer safety and satisfaction, so their products are engineered to handle common household water pressures, which may be increased by pressure pumps.